Nasiruddin Mahmud

Sultan Mahmud of Bengal (1207-1229), also known as Nasiruddin Mahmud, was the governor of Bengal for the Delhi Sultanate from 1227 to 1229, succeeding Ghiyasuddin Iwaj Shah and preceding Malik Balkha Khilji.

Biography
Mahmud was the son of Ilutmish, the sultan of the Delhi Sultanate. Mahmud was from the House of Delhi, a dynasty of Sunni Muslim Turks. When Ghiyasuddin Iwaj Shah rebelled against Ilutmish in 1227, Ilutmish sent Mahmud to fight him. Mahmud defeated Iwaj and became the governor of Bengal, becoming its first sultan. In 1228 he killed the Assamese Khen dynasty ruler Prithu and then attacked Tibet, but he died in 1229 of illness at the age of 22.